This information can be useful to decide if a short read or write was due
to an error, an EOF, or a non-blocking operation that isn't yet ready to
complete.
An SDL_IOStream's status is only expected to change after a SDL_ReadIO or
SDL_WriteIO call; don't expect it to change if you just call this query
function in a tight loop.
Query the stream status of an SDL_IOStream.
This information can be useful to decide if a short read or write was due to an error, an EOF, or a non-blocking operation that isn't yet ready to complete.
An SDL_IOStream's status is only expected to change after a SDL_ReadIO or SDL_WriteIO call; don't expect it to change if you just call this query function in a tight loop.
\param context the SDL_IOStream to query.